Alongside iOS 13.4, iPadOS 13.4, and macOS 10.15.4, Apple has also released watchOS 6.2 for all compatible Apple Watch models.

watchOS 6.2 is a relatively major update that brings IAP support for watchOS apps. It also expands ECG support and irregular heart rhythm on the Apple Watch Series 4 and Series 5 to Chile, New Zealand, and Turkey.
The full release notes of watchOS 6.2 can be found below:
– Introduces in-app purchases for Apple Watch apps
– Fixes an issue where music playback could pause when switching from Wi-Fi to Bluetooth connectivity
– ECG app on Apple Watch Series 4 or later now available in Chile, New Zealand, and Turkey
– Irregular heart rhythm notifications now available in Chile, New Zealand, and Turkey
Some features may not be available for all countries or all areas, for more information visit: https://www.apple.com/watchos/feature-availability/
This is likely the last major release of watchOS 6 before Apple announces watchOS 7 at WWDC 2020 in June. A number of watchOS 7 features have already been detailed which includes sleep tracking, Kids Mode, Schooltime, an improved Health app, new watch faces, and more.